sed提取文本信息问题

wei123chen

CPU usage: 2.12% user, 2.56% sys
CPU usage: 3.23% user, 1.23% sys
CPU usage: 4.34% user, 2.12% sys
想从这些数据中提取数字，然后把数字保存下来
2.12；2.56
3.23；1.23
4.34；2.12
该怎么写？
谢谢帮忙^^

yinyuemi

回复 1# wei123chen


    sed 's/[^0-9.]\+/ /g'

kk5234

1. sed 's/.*\([0-9].[0-9]\+\).*\([0-9].[0-9]\+\).*/\1; \2/g'

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chichushanren

学习了，高手。

wei123chen

回复 2# yinyuemi
sed 's/CPU usage: \([0-9]*/)% user, \([0-9]*/)% sys .*/\1;\2/' $1>temp
awk 'BEGIN { i=1 }
{
        print i";"i";"$0
        i++
}' temp

你好，有没有类似这样的解决方法呢？


   

yinyuemi

回复 5# wei123chen


    sed 's/CPU usage: \([0-9].*\)% user, \([0-9].*\)% sys.*/\1;\2/;=' file |sed 'N;s/^\([^\n]\+\)\n/\1;\1;/'

wei123chen

回复 6# yinyuemi
太感谢了～～


   

personball

1. echo 'CPU usage: 2.12% user, 2.56% sys
   
2. CPU usage: 3.23% user, 1.23% sys
   
3. CPU usage: 4.34% user, 2.12% sys'|grep ^CPU|grep -oE "[0-9].[0-9]+%"
   
4. 2.12%
   
5. 2.56%
   
6. 3.23%
   
7. 1.23%
   
8. 4.34%
   
9. 2.12%
   

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